Design and studies of a self-assembled cofacial zinc phthalocyanine dimer complexed with fullerene(s)
Citation
Maligaspe, Eranda, D’Souza, Francis , (2008) . Design and studies of a self-assembled cofacial zinc phthalocyanine dimer complexed with fullerene(s) . In Proceedings: 4th Annual Symposium: Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University, p.157-158
Abstract
Biomimetic bacterial photosynthetic reaction center complexes have been constructed using welldefined
self-assembled supramolecular approaches. The “special pair” donor, a cofacial phthalocyanine dimer,
was formed via potassium ion induced dimerization of tetra-(benzo-[15]crown-5) phthalocyanine. The dimer was
subsequently self-assembled with functionalized fullerene(s) via axial coordination. The utilization of such welldefined
multiple modes of binding in a controlled fashion results in the formation biomimetic supramolecualr
complexes which further allows to probe the photoinduced charge separation. These complexes were fully
characterized using 1H NMR, UV-Vis, electrochemical and mass spectrometric methods. The evidence for
interaction in the ground state systems was obtained from spectroscopic and computational studies. Electron
transfer from the excited zinc phthalocyanine to fullerene was reveled by steady and time-resolved emission
studies.
Description
Paper presented to the 4th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 25, 2008.
Research completed at the Department of Chemistry, Fairmount College of Liberal Arts and Sciences